Cursor interface POSIX-like functions

[tshemsedinov]

We need something simple like POSIX shell commands for data traversal and other manipulations, for example:

• Change cursor position in database Cursor.cd(path) with relative paths using ..
• Create new Cursor at relative path Cursor.path(path):Cursor
• Compare and difference: Cursor.cmp(cursor) and Cursor.diff(cursor)
• Copy, move and link: cp, mv, ln
• List 1st level cursor entries to stdout Cursor.ls() What do you think? @aqrln

[aqrln]

Cursor is essentially an iterator, isn't it? How can it have pathes, cd and stuff?

[tshemsedinov]

@aqrln cursor points to certain place in GlobalStorage, so Cursor.cd(path) will return another cursor which points to relative place